Created and registered middleware which replaces short-code from short-url on rest paths

module/Rest/test/Middleware/ShortUrl/ShortCodePathMiddlewareTest.php

@@ -0,0 +1,50 @@
+<?php
+declare(strict_types=1);
+
+namespace ShlinkioTest\Shlink\Rest\Middleware\ShortUrl;
+
+use PHPUnit\Framework\Assert;
+use PHPUnit\Framework\TestCase;
+use Prophecy\Argument;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Message\UriInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use Shlinkio\Shlink\Rest\Middleware\ShortUrl\ShortCodePathMiddleware;
+use Zend\Diactoros\Response;
+use Zend\Diactoros\Uri;
+
+class ShortCodePathMiddlewareTest extends TestCase
+{
+    private $middleware;
+    private $requestHandler;
+
+    public function setUp()
+    {
+        $this->middleware = new ShortCodePathMiddleware();
+        $this->requestHandler = $this->prophesize(RequestHandlerInterface::class);
+        $this->requestHandler->handle(Argument::type(ServerRequestInterface::class))->willReturn(new Response());
+    }
+
+    /**
+     * @test
+     */
+    public function properlyReplacesTheOldPathByTheNewOne()
+    {
+        $uri = new Uri('/short-codes/foo');
+
+        $request = $this->prophesize(ServerRequestInterface::class);
+        $request->getUri()->willReturn($uri);
+        $withUri = $request->withUri(Argument::that(function (UriInterface $uri) {
+            $path = $uri->getPath();
+
+            Assert::assertContains('/short-urls', $path);
+            Assert::assertNotContains('/short-codes', $path);
+
+            return $uri;
+        }))->willReturn($request->reveal());
+
+        $this->middleware->process($request->reveal(), $this->requestHandler->reveal());
+
+        $withUri->shouldHaveBeenCalledTimes(1);
+    }
+}